About 39 per cent. The Gibbs free energy for gasoline (petrol) is about 45.7 MJ/Kg, and the amount of mechanical energy obtained is about 17.6 MJ/Kg. The figures will vary a bit from one engine to another, and from one grade of fuel to another.

(from Wikipedia)

calorific value means the total amount of heat energy evolved when 1gm of the fuel is completely burnt.

from the combustion equation find out enthalpy of combustion.then divide the molecular weight to that quantity.

Diesel engines come in all sizes. Some smaller and some quite larger than gasoline engines. A diesel engine makes no more H.P. than a gasoline engine but makes lots more torque and it's H.P. at low RPMs. Diesels typically have a compression ratio of around from 16 to 1 to as high as 23 to 1. Most gasoline engine will have around a 9 to 1 ratio. The higher compression ratio of a diesel allows it to make much more torque at lower RPMs. Torque is pulling power which is what a truck needs.

Of an individual diesel engine and an individual steam engine of the same energy output the diesel engine would be less polluting. It is far more efficient.

However, there are far more diesel engines than steam engines in the world today so overall diesel engines pollute more than steam engines.

Diesel engines run much higher compression than petrol engines. The higher compression makes the air in the cylinder so hot that the fuel self ignites. A petrol engine doesn't get warm enough for self ignition, so you have to add a spark from the spark plug to ignite the fuel.

No.

Diesel and petrol, while both petrochemicals, act quite differently. Petrol is ignited by a spark, and at a relatively low pressure. Diesel 'self ignites' when placed under sufficient pressure, therefore diesel engines do not use spark plugs, and require higher operating pressures to work.

To allow for the different pressures, there are large differences between the designs of petrol and diesel engines, carburettors/fuel injectors and valve systems.

The only way to convert a petrol car to a diesel (or vice versa) is a complete engine swap.

I assume by gasoline that's the same as unleaded/petrol.... Well basically you will not do any serious damage to the engine itself, the car will stop working, quite possibly have some black smoke coming out the exhaust as the diesel works it way through, you will not be able to use the car until the entire fuel system has been drained out, so its a costly and frustrating mistake to make.

Hexadecimal is commonly used in comoputing to represent a memory byte.

A compression ignition engine works with Pistons and Valve openings.

There is an intake valve, with lets the fuel and air into the cylinder, and the exhaust valve which allows for the escape of the combustion.

The engine starter, supposedly started by a battery, gives the piston an Initial movement away from the valves, which bring the fuel and air into the cylinder, then pushes the piston back up, with this mixture of fuel, which is at a certain mixture which is then ignited by a spark plug. The explosion throws the piston back down which releases the exhaust valve allowing for the exhaust to exit. Once the exhaust leaves the piston moves back up , probably by the flywheel... and is brought down again which allows another mixture of fuel. This allows the engine to begin on its own timing without the need of a starter.

The specific heat capacity of wood varies as a function of the type of wood and also the moisture content. A figure of 0.4 to 0.5 will get you in the ball park, but numbers can stray well above and below that range. Dry balsa and a chunk of fir that was just pulled up from the bottom of a lake where it was snoozing for a hundred years will lie outside the given values. By giving it a bit of thought, you can see why. This may not help you solve a specific problem, but it will allow you to assess the variables and perhaps come up with a "best guess" for your specific application.

Some examples of biofuels would be, ethanol, straw, etc. Anything that is organic and can be grown by humans in mass. Lamp oil, flaxseed oil, peanut oil (substitutes for diesel), turpentine, plant-based ethanol, and biomass methane gas are all examples of biofuels.

no

the relay is located in the engine compartment fuse box which is located just above the steering box on the right side of the van. open the box and the relay on the center will be the pump relay

Some cars have diesel engines because diesel engines give more mileage and diesel is cheaper than gasoline in some countries.

In the UK diesel fuel costs more than gas but, because diesel engines give much better mileage (miles per gallon), people are still happy to pay more for the diesel fuel if they run diesel vehicles.

Diesel engines last much longer and have much better torque at low revs than a petrol engine.

Theoretically the more curb weight the slower the vehicle will travel.

The best guess would be about 20 gallons using 20 mpg as an average. The distance is just over 400 miles.

allot of money is spent on petrol each day by each person they use about $60 - $80 a day

Augsburg, Germany

Burning techniques are totally different when comparing Diesel and Gasoline. In Gasoline engines, air and fuel mixture is injected into the cylinder (in a non direct fuel injection system) this mixture is then compressed and thus temperature of the mixture increases, but not to the ignition temperature, this is why we need a spark plug in gasoline engines to start this small fire. After reaching the top dead level of the cylinder (or sometimes even before that ) spark plug releases its charge and start a very small explosion inside the cylinder head. This small fire ball propagates as far as there is enough fuel and oxygen. While this explosion propagates, the piston is being pushed down and turning the flywheel through the crankshaft. As you can see, you don't need to compress this air and fuel mixture till ignition temperature and you don't want to do it!!! This is why it is possible to design gasoline engines with short strokes. Short strokes means short reciprocating movements, which means faster rotational speed.

In diesel engines, there is no spark plug, because ( and I'm not 100% sure about that ) Diesel is not a good fuel in propagating a controlled fireball. It just doesn't work very well in diesel. Because of that, Only air is being compressed inside a diesel engine during the compression cycle. Somewhere during compression stage, diesel is being injected inside the cylinder and starts to spread homogenously inside the cylinder, compression continues and the mixture is mixed and heated up till it reaches ignition temperature. Once ignition temperature is reached, the whole mixture explodes at the same moment. As you can see, there is no flame propagation in diesel engines, the whole mixture just explodes in a single moment. And in order to reach ignition temperature you need a long enough stroke to be able to compress air till it reaches ignition temperature of the fuel. Longer stroke means slower cycle, but higher torque. This is why Diesel engines have more torque but less speed than their gasoline counterparts.

Hope this answers your question.

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Okay...

The Diesel engine (named after Rudolf Diesel, who invented it) was designed to burn any flammable liquid you put in it--Herr Diesel originally intended to run it on vegetable oil. OTOH, a spark ignition engine requires fuel with a minimum amount of volatility, so gasoline has to be a very highly refined product.

The Diesel cycle compresses air inside the cylinder until it's hot enough to ignite the fuel. At that point, the injection system squirts a premeasured dose of fuel into a combustion chamber in the cylinder head. It ignites instantly. Because the flame front is confined to the little chamber the fuel's being injected into, there has to be a LOT of excess air in there. To get it, the engine is "oversquare"--the stroke is longer than the bore. (A Detroit Diesel DD15 is 5.47" bore, 6.43" stroke. It's an inline 6 engine that displaces 14.7 liters.

Now here's where it gets fun: The DD15 comes in eight different horsepower ratings, and the only difference between the eight engines is the fuel injector system--the more power your engine has, the more fuel the injector holds. (There's also a different program in the computer, but that's another issue.) Before the EPA got all antsy about diesel emissions you could take your truck to Pittsburgh Power, have them install higher-flow injectors and have a much more powerful truck for relatively little money. (You can't do that now; the current electronic fuel injection systems on big rigs keep you from doing that.)